Oil-hole cover or cap



Patented Aug. 2, |898.

- F. n. wlNKLEY.

UIL HOLE COVER 0R CAP.

(Application led Sept. 13, 1897.)

(No Model.)

UNITED STATES` PATENT OFFICE- FRANK D. WINKLEY, OF MADISON, WISCONSIN.

OIL-HOLE COVER OR CAP.

SPECIFICATION forming part of Letters Patent No. 608,243, dated August2,1898.

` Application nea september 13,1897. semina. 651,506. 11@ mit-.1.a

T a/ZZ whom it nea/y concern:

Be it known that I, FRANK D. WINKLEY, a citizen of the United States,residing at Madison, in the county of Dane and State of Wisconsin, haveinvented certain new and useful Improvements in-Oil-IIole Covers orOaps, of

which the following is a specification.

My invention pertains to improvements in oil-hole covers or caps, theconstruction and advantages of which'will be hereinafter fully setforth, reference being had to the annexed drawings, wherein- Figure 1 isa perspective view of my improved cap in its closed position; Fig. 2, asimilar view, the cap being shown open; Figs. 3 and 4, top plan views ofFigs. 1 and 2, respectively; Fig. 5, a longitudinal sectional view ofthe cap in -its closed position; Fig. 6, a similar view, the cap beingopen; and Fig. 7, a sectional perspectivelview.

The object of my invention is to provide a simple and eflicientcap orcover which may be readily applied to oil-holes of machinery and at thesame time one which will be easy of manipulation and thoroughlydust-proof.

Referring to the drawings, A` designates a hollow stern or post formedwith a cylindrical recess B, extendingY from the lower end thereof up tothe upper end or top C. Said top is provided with an opening D at oneside of the center,which communicates with the internal bore B. Acylindrical stud E extends the upper part of the recess, as shown.These' openings are designed to receive a spring H,

formed of a single piece of spring-wire, the' ends being bent around aslight distance from the stem and downwardly, as indicated in Fig. 7.

The lower part of the stem Yis reduced, as

at I, and also provided with a" threaded sec-v tion .I and polygonalsection K, the device being designed to be either driven or screwed intoplace.

L indicates the cover, formed with an opening M of a diameter slightlygreater than that of stud E, so that the stud may enter the same whenthe parts are in their closed position.

An annular groove N is formed in the inner face of the dependingskirt ofcover L, the arms of spring II entering said groove when the parts areassembled and tending to draw the cover down upon the top O. The arms ofthe spring being diametrically opposite exert an equal pressure uponboth sides of the cap, preventingany binding action, and, on account oftheir downward inclination, permitting the cover to be raised a distanceequal to-the distance between the bottom of groove N and the top ofgroove F, less the thickness of the spring, between which points thespringarms would be clamped were the cover raised to its extreme height.

The cover may be readily forced into position by exerting a downwardpressure thereon and at the same time turning it slightly in thedirection in which the arms extend, thus forcing the arms back intogroove F, allowing the cover to descend, the spring-arms entering grooveN immediately it comes opposite them.

Assuming the cover to be closed, or in the position shown in Figs. l, 3,and 5, wherein the stud E is within opening M, and it be desired .toinject or pour oil into the oil-hole, the operator takes hold of cap L,raises it free from stud E, and turns it around in either directionuntil openings D and M are in line.

Stud E meanwhile bears upon the under face of the cap and holds said capin its elevated? movement of the machinery to which it may be attached.

I-Iaving thus described my invention, what I claim is- 1. In an oil-holecover'or cap, the combination of a hollow stem or post provided with anopening in its upper end; a stud upon the upper end of the post; and acap rotatably IOO mounted upon the upper end of the post and providedwith an opening, said eap being eapablo of rotation so as to bring itsopening into alinement with the stud or with the opening formed in thepost.

2. In an oil-hole cover or cap, the combination of a hollow stem or postprovided with an opening in its upper end, and an oppositely-disposedstud rising therefrom; a cap mounted on said post and provided with anopening to one side of its center, said eap being rotatable whereby itsopening may be brought into alinement with the opening in the post orwith the stud thereon; and means for drawing said cap down upon the postwhen the stud and opening in the cap are in alinement.

In an oil-hole cover or eap, the combination of a hollow stem or postprovided with an opening at its upper end, and an upwardlyextendingeceentrie stud; a cap fitting over the upper end of the post alsoprovided with an opening said opening being to one side of the eenterofthe cap; and means for holding the Cap upon said stein allowinglongitudinal and rotary motion thereof relative to the post.

4f. In an oil-hole cover or cap, the combination of a hollow post orstem provided with an opening at its upper end to one side of itscenter; a stud extending upwardly from said upper end at a pointapproximatelyv opposite said opening; and a cap formed with an openingto one side of its center,rotatably mounted upon said post, said eapalso being capable of endwise movement, the stud upon the post beingdesigned to enter the opening in the cap when said opening and theopenin g in the post are out of alinement.

5. In an oil-hole cover or cap, the combination of a hollow stem or postprovided with an upwardly-extending stud, and with an openin gin itsupper end; there being a groove F formed around the post below theopening; a spring II; and a cap designed to be fitted over the upper endof the post, said cap havin g formed therein an annulargroove or channelN designed when the parts are assembled to receive the ends of thespring and to permit a rotary and endwise movement of the cap,substantially as shown and described.

G. In an oil-hole cover or cap, the combination of a hollow stem or postprovided with an opening at its upper end and with an upwardly-extendingstud; a channel F formed around said post below the opening;dialnetrieally opposite openings G; a spring ll mounted in said openingsthe free ends of whieh'extend downwardly and around said post; and a capdesigned to fit over the upper end of the post, said cap having aninternal annular groove N formed therein designed to receive the ends ofthe spring whereby a longitudinal and rotary motion may be given to thecap.

7. In an oil-hole cover or cap, the combination of a hollow stem or postprovided with an opening at its upper end to one side ofthe centerthereof and an upwardly-extending stud E; a groove or channel F formedaround the post at a point immediately below the top; a spring II thefree ends of which extend downwardly and around the post; and a capdesigned to lit over the upper end oi the post, said cap being providedwith an opening M and an internal channel or groove N to receive thefree ends of the spring, substantially as and for the purpose set forth.

S. In an oil-hole cover or eap, the combination of a hollow stem or postprovided with an opening at its upper end and with an upwardlyextendingstud; oppositely-disposed spring-arms extending around said post belowthe opening; a eap designed to lit over the upper end of the post, saidcap being provided with an internal annular groove designed to receivethe spring-arms, substantially as and for the purpose set forth g and anopening formed in the upper faee of the cap.

In witness whereof I hereunto set my hand in the presence of twowitnesses.

FRANK D. XVINKLICY. lVitn esses:

G. J. CoRsCoT, Il. G. NICHoLs.

